Somthing wrong in Dropdown list control

Hi,

I use a dropdown list control with several items, let say, 'Item 1 - PC', 'Item 2 - Mobile Phone, 'Item 3 - Misc'.  And I use 'OnSelectedIndexChanged' properties and redirect to C## routine to execute some statement.  Everytime I change the index other than 'Item 1 - PC' is fine.  But I chose 'Item 1 - PC', the screen have no reaction.  I declare the dropdown list to 'AutoPostback'.

Please help !

stephen

 
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